[amsat-bb] Re: AO-51 mode V/S

[George Henry]

You can use any oscillator module, such as from an old PC motherboard, that will put out harmonics up in the 2.4 GHz range.  I happened to find a 24.000 MHz one on an old MB.  Just now, looking around in the junk drawer, I found ones for 4.000 and 16.000 MHz as well.  Add 5 volts and a short piece of wire on the output pin, and you're good to go.

73,

George, KA3HSW


-----Original Message-----
>From: Rm2642 at aol.com
>Sent: May 13, 2008 10:53 AM
>To: amsat-bb at amsat.org
>Subject: [amsat-bb] Re: AO-51 mode V/S
>
>Unfortunately, I had no success with the AO-51 V/S mode this past  week.
> 
>Before the next V/S mode operation comes around, I want to double  check 
>performance of my antenna and downconverter. Some of the folks in the UK  had 
>these items available during AO-40 days but don't think they're available  today, 
>such as:
> 
>_http://www.uk.amsat.org/index.php?option=com_content&task=view&id=252&Itemid=
>86_ 
>(http://www.uk.amsat.org/index.php?option=com_content&task=view&id=252&Itemid=86) 
> 
>I've seen Bob's K5GNA 2.4GHz Source 
>on eBay with the: 
>_http://cgi.ebay.com/2-4-GHz-SIGNAL-SOURCE-GARDINER-TYPE-LO2398-AMSAT_W0QQitem
>Z110251114382QQcmdZViewItem_ 
>(http://cgi.ebay.com/2-4-GHz-SIGNAL-SOURCE-GARDINER-TYPE-LO2398-AMSAT_W0QQitemZ110251114382QQcmdZViewItem) 
> 
>Are there other small modular type 2.4Ghz Sources out there that I can use  
>to verify downlink setup?
> 
>Thanks,
>Ron
>N6PAA